Hydrodynamic thickness of adsorbed polymers

Abstract

Relationships between the molecular dimensions of polymers adsorbed on solid surfaces and the ’’hydrodynamic thickness’’ obtained by viscosimetry or flow rates through capillaries are derived by solving the corresponding Navier–Stokes equation. An exponential density distribution of polymer segments in the vicinity of the adsorbing interface was used. The theoretical results are discussed in connection with the experimental data of the literature.